Classic Tyres

[Voiska]

Hi guys,

I want to fit some classic flat track tyres and was looking at the Shinko 270. The only thing is I'm new to bikes and am currently only used to the whole 120/90 18 sort of numbers. When looking at these classic tyres I'm seeing 500 x 16. I assume the 16 is rim size? but what is the 500 relating to and what will fit my 1980 GS550L?

Thanks in advance!

 

[bwringer]

It's usually written as "5.00", not "500", and it refers to the tire width in inches. If no aspect ratio is given, assume 90 or 100.

So, for example, a common old-school tire size is 5.10 X 17. This approximately equates to a 130/90-17 (5.10 inches equals 129.54 mm). (5.00X17, of course, would be a teensy bit narrower.)

Here's a conversion chart so you can get close -- the conversions aren't exact, of course, but you can get a general idea of what will fit. Stay as close as you can to stock sizes so handling is compromised as little as possible.
http://www.webbikeworld.com/Motorcycle-tires/tire-data.htm

Another thing to mention is that tires designated in this way are very old designs that require tubes, even if mounted to tubeless rims.

If you plan to actually ride the bike, the idea of buying less capable tires based solely on their appearance seems very strange and silly to me and many others around here. Brace yourself for vigorous harrumphing...

 

[Gorminrider]

from a chart I have saved , 5.00 fits a 3.50 inch rim ..just possibly a 3.0..in fact Shinko says 3.0
http://www.shinkotireusa.com/tire/270-super-classic#sizes

be sure that the width of the tire will not hit your swingarm and (Harrumph!) avoid steel-grate bridges or grooved highway evermore.

 

[Benny A]

Here is my gs750 1977 with Firestone Deluxe Champion tires..

 

[tkent02]

Now show it upside down in a ditch.....